When inspecting the combustion section of a gas turbine engine, what wattage light source should you use?

Correct Answer: Option A — 1000 watt.

The combustion section of a gas turbine is a large, dark, and complex environment. A 1000-watt light source is required to provide sufficient illumination to inspect the combustor liners, fuel nozzles, and transition pieces for cracks, burning, or carbon buildup, ensuring that all critical defects are clearly visible to the inspector.